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001-es BibID:BIBFORM102091
035-os BibID:(cikkazonosító)3039 (Wos)000794369800001 (Scopus)85130281120
Első szerző:Csépányi Evelin (gyógyszerész)
Cím:Beta-Carotene Affects the Effects of Heme Oxygenase-1 in Isolated, Ischemic/Reperfused Rat Hearts : potential Role of the Iron / Csepanyi Evelin, Gyongyosi Alexandra, Lekli Istvan, Tosaki Arpad, Bak Istvan
Dátum:2022
ISSN:1420-3049
Megjegyzések:Abstract: Beta-carotene (BC) is a well-known antioxidant. However, increasing evidence shows that under severe oxidative conditions, BC can become pro-oxidant, an effect that may be enhanced in the presence of iron (II). In our earlier studies, we observed that despite increasing heme oxygenase-1 (HO-1) levels in the heart, the protective effects of BC have been lost when it was used at a high concentration. Since iron releases from heme as a consequence of HO-1 activity, we hypothesized that the application of an iron-chelator (IC) would reverse the lost cardiac protection associated with an elevated HO-1 level. Thus, in the present study, we investigated the effects of desferrioxiamine (DFO) in isolated, ischemic/reperfused rat hearts after long-term treatment with vehicle or high-dose (HD) BC. Vehicle or 150 mg/bw kg daily doses of BC were administered to the rats for 4 weeks, and then their hearts were removed and subjected to 30 min of global ischemia (ISA) followed by 120 min of reperfusion (REP). During the experiments, cardiac function was registered, and at the end of the REP period, infarct size (IS) and HO-1 expression were measured. The results show that DFO treatment alone during REP significantly ameliorated postischemic cardiac function and decreased IS, although HO-1 expression was not increased significantly. In hearts isolated from BC-treated rats, no cardioprotective effects, despite an elevated HO-1 level, were observed, while DFO administration after ISA resulted in a mild improvement in heart function and IS. Our results suggest that iron could have a role whether BC exerts antioxidant or pro-oxidant effects in ISA/REP-injured hearts.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Molecules. - 27 : 9 (2022), p. 1-12. -
További szerzők:Gyöngyösi Alexandra (1990-) (táplálkozástudományi szakember) Lekli István (1981-) (gyógyszerész) Tósaki Árpád (1958-) (kísérletes farmakológus, gyógyszerész) Bak István (1975-) (vegyész, analitikus, farmakológus)
Pályázati támogatás:2.3.4-15-2020-00008
GINOP
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Intézményi repozitóriumban (DEA) tárolt változat
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2.

001-es BibID:BIBFORM072581
035-os BibID:(cikkazonosító)1017 (scopus)85044643567 (wos)000434978700096
Első szerző:Czompa Attila (gyógyszerész)
Cím:Aged (Black) versus Raw Garlic against Ischemia/Reperfusion-Induced Cardiac Complications / Attila Czompa, Kitti Szoke, Jozsef Prokisch, Alexandra Gyongyosi, Istvan Bak, Gyorgy Balla, Arpad Tosaki, Istvan Lekli
Dátum:2018
ISSN:1661-6596 1422-0067
Megjegyzések:Background: Recent evidence of studies suggests that aged black garlic also has health beneficial effect. The major aim of the present study is to compare the effect of raw and aged black garlic on postischemic cardiac recovery. Methods: Male Sprague Dawley rats were randomly divided into three groups. Animals of the first group were fed with raw garlic, animals of the second group received aged black garlic, while the third group served as vehicle treated control. At the end of the treatment, isolated hearts were undertaken to ischemia/reperfusion. Heart function and infarct size were measured and the level of HO-1 and iNOS were studied. Results: We have found superior postichemic cardiac function and reduced infarct size in both garlic treated groups compared to the drug-free control group, indicating cardioprotective effects. However, no significant differences between the garlic treated groups were observed. Our Western blot analysis revealed that raw garlic enhanced the level of HO-1 before ischemia, while in ischemic samples we found elevated HO-1 expression in both garlic treated groups. The level of iNOS was the same before ischemia in all groups, however, a markedly reduced iNOS level in ischemic/reperfused hearts originated from control and raw garlic treated animals was observed. In samples from aged black garlic treated animals, the level of iNOS was not significantly reduced after ischemia/reperfusion.Conclusion: Taken together our results indicate that not only raw but also aged black garlic also possesses cardioprotective effect.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
garlic
ischemia
hemeoxygenase
reperfusion
heart
Megjelenés:International Journal of Molecular Sciences. - 19 : 4 (2018), p. 1-13. -
További szerzők:Szőke Kitti Prokisch József (1966-) (vegyész) Gyöngyösi Alexandra (1990-) (táplálkozástudományi szakember) Bak István (1975-) (vegyész, analitikus, farmakológus) Balla György (1953-) (csecsemő és gyermekgyógyász, neonatológus) Tósaki Árpád (1958-) (kísérletes farmakológus, gyógyszerész) Lekli István (1981-) (gyógyszerész)
Pályázati támogatás:OTKA-PD-111794
OTKA
NKFI-124719
NKFI
TÁMOP 4.2.4. A/2-11-1-2012-0001
TÁMOP
GINOP-2.3.2-15-2016-00043
GINOP
EFOP-3.6.1-16-2016-00022
EFOP
ÚNKP-17-4-III-DE-219
ÚNKP
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM067980
035-os BibID:(WoS)000398743500147 (Scopus)85016285017
Első szerző:Czompa Attila (gyógyszerész)
Cím:Effects of Momordica charantia (Bitter Melon) on Ischemic Diabetic Myocardium / Czompa Attila, Gyöngyösi Alexandra, Szőke Kitti, Bak István, Csépányi Evelin, David D. Haines, Tósaki Árpád, Lekli István
Dátum:2017
ISSN:1420-3049
Megjegyzések:Objective: A rat model is here used to test a hypothesis that Momordica charantia (Bitter melon (BM)) extract favorably alters processes in cardiovascular tissue and is systemically relevant to the pathophysiology of type 2 diabetes (T2DM) and related cardiovascular disease. Methods: Male Lean and Zucker Obese (ZO) rats were gavage-treated for six weeks with 400 mg/kg body weight bitter melon (BM) extract suspended in mucin?water vehicle, or with vehicle (Control). Animals were segregated into four treatment groups, 10 animals in each group, according to strain (Lean or ZO) and treatment (Control or BM). Following six-week treatment periods, peripheral blood was collected from selected animals, followed by sacrifice, thoracotomy and mounting of isolated working heart setup. Results: Body mass of both Lean and ZO rats was unaffected by treatment, likewise, peripheral blood fasting glucose levels showed no significant treatment-related effects. However, some BM treatment-related improvement was noted in postischemic cardiac functions when Lean, BM-treated animals were compared to vehicle treated Lean control rats. Treatment of Lean, but not ZO, rats significantly reduced the magnitude of infarcted zone in isolated hearts subjected to 30 min of ischemia followed by 2 h of working mode reperfusion. Immunohistochemical demonstration of caspase-3 expression by isolated heart tissues subjected to 30 min of ischemia followed by 2 h of reperfusion, revealed significant correlation between BM treatment and reduced expression of this enzyme in hearts obtained from both Lean and ZO animals. The hierarchy and order of caspase-3 expression from highest to lowest was as follows: ZO rats receiving vehicle > ZO rats receiving BM extract > Lean rats treated receiving vehicle > Lean rats administered BM extract. Outcomes of analyses of peripheral blood content of cardiac-related analytics: with particular relevance to clinical application was a significant elevation in blood of ZO and ZO BM-treated, versus Lean rats of total cholesterol (high density lipoprotein HDL-c + low density lipoprotein LDL-c), with an inferred increase in HDL-c/LDL-c ratio?an outcome associated with decreased risk of atherosclerotic disease. Conclusions: BM extract failed to positively affect T2DM- and cardiovascular-related outcomes at a level suggesting use as a standalone treatment. Nevertheless, the encouraging effects of BM in enhancement of cardiac function, suppression of post-ischemic/reperfused infarct size extent and capacity to modulate serum cholesterol, will likely make it useful as an adjuvant therapy for the management of T2DM and related cardiovascular diseases.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Ischemia
diabetes
bitter melon
Megjelenés:Molecules. - 22 : 3 (2017), p. 488. -
További szerzők:Gyöngyösi Alexandra (1990-) (táplálkozástudományi szakember) Szőke Kitti Bak István (1975-) (vegyész, analitikus, farmakológus) Csépányi Evelin (1985-) (gyógyszerész) Haines, David Donald (1981-) (gyógyszerész) Tósaki Árpád (1958-) (kísérletes farmakológus, gyógyszerész) Lekli István (1981-) (gyógyszerész)
Pályázati támogatás:OTKA-104017
OTKA
TÁMOP-4.2.4. A/2-11-1-2012-0001
TÁMOP
GINOP-2.3.2-15-2016-00043
Egyéb
OTKA-PD-111794
Egyéb
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM054296
Első szerző:Czompa Attila (gyógyszerész)
Cím:Cardioprotection afforded by sour cherry seed kernel : the role of heme oxygenase-1 / Attila Czompa, Alexandra Gyongyosi, Andras Czegledi, Evelin Csepanyi, Istvan Bak, David D. Haines, Arpad Tosaki, Istvan Lekli
Dátum:2014
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Molekulatudomány
Doktori iskola
Megjelenés:Journal of Cardiovascular Pharmacology. - 64 : 5 (2014), p. 412-419. -
További szerzők:Gyöngyösi Alexandra (1990-) (táplálkozástudományi szakember) Czeglédi András Csépányi Evelin (1985-) (gyógyszerész) Bak István (1975-) (vegyész, analitikus, farmakológus) Haines, David Donald (1981-) (gyógyszerész) Tósaki Árpád (1958-) (kísérletes farmakológus, gyógyszerész) Lekli István (1981-) (gyógyszerész)
Pályázati támogatás:K-104017
OTKA
PD-83808
OTKA
TÁMOP-4.2.1/B-09/1/KONV-2010-0007
TÁMOP
Kardiovaszkuláris megbetegedések génterápiás befolyásolása
TÁMOP-4.2.2/B-10/1-2010-0024
TÁMOP
Gyógyszerészeti Tudományok Doktori Iskola
TÁMOP-4.2.2.A-11/1/KONV-2012-0045
TÁMOP
Gyógyszerhatástan Kutatócsoport
TÁMOP 4.2.4. A/2-11-1-2012-0001
TÁMOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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5.

001-es BibID:BIBFORM091222
035-os BibID:(WoS)000615458000001 (Scopus)85100492364
Első szerző:Gyöngyösi Alexandra (táplálkozástudományi szakember)
Cím:Basic Pharmacological Characterization of EV-34, a New H2S-Releasing Ibuprofen Derivative / Alexandra Gyöngyösi, Vivien Verner, Ilona Bereczki, Attila Kiss-Szikszai, Rita Zilinyi, Árpád Tósaki, István Bak, Anikó Borbás, Pál Herczegh, István Lekli
Dátum:2021
ISSN:1420-3049
Megjegyzések:Background: Cardioprotective effects of H2S are being suggested by numerous studies. Furthermore, H2S plays a role in relaxation of vascular smooth muscle, protects against oxidative stress, and modulates inflammation. Long-term high-dose use of NSAIDs, such as ibuprofen, have been associated with enhanced cardiovascular risk. The goal of the present work is the synthesis and basic pharmacological characterization of a newly designed H2S-releasing ibuprofen derivative. Methods: Following the synthesis of EV-34, a new H2S-releasing derivative of ibuprofen, oxidative stability assays were performed (Fenton and porphyrin assays). Furthermore, stability of the molecule was studied in rat serum and liver lysates. H2S-releasing ability of the EC-34 was studied with a hydrogen sulfide sensor. MTT (3-(4,5-dimethylthiazol 2-yl)-2,5-(diphenyltetrazolium bromide)) assay was carried out to monitor the possible cytotoxic effect of the compound. Cyclooxygenase (COX) inhibitory property of EV-34 was also evaluated. Carrageenan assay was carried out to compare the anti-inflammatory effect of EV-34 to ibuprofen in rat paws. Results: The results revealed that the molecule is stable under oxidative condition of Fenton reaction. However, EV-34 undergoes biodegradation in rat serum and liver lysates. In cell culture medium H2S is being released from EV-34. No cytotoxic effect was observed at concentrations of 10, 100, 500 mu M. The COX-1 and COX-2 inhibitory effects of the molecule are comparable to those of ibuprofen. Furthermore, based on the carrageenan assay, EV-34 exhibits the same anti-inflammatory effect to that of equimolar amount of ibuprofen (100 mg/bwkg). Conclusion: The results indicate that EV-34 is a safe H2S releasing ibuprofen derivative bearing anti-inflammatory properties.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Molecules. - 26 : 3 (2021), p. 1-12. -
További szerzők:Verner Vivien Bereczki Ilona (1981-) (vegyész, antibiotikumkémikus) Kiss-Szikszai Attila (1975-) (vegyész) Zilinyi Rita Tósaki Árpád (1958-) (kísérletes farmakológus, gyógyszerész) Bak István (1975-) (vegyész, analitikus, farmakológus) Borbás Anikó (1965-) (vegyész) Herczegh Pál (1947-) (vegyész, antibiotikumkémikus) Lekli István (1981-) (gyógyszerész)
Pályázati támogatás:GINOP-2.3.2-15-2016-00043
GINOP
EFOP-3.6.1-16-2016-00022
EFOP
NKFIH-1150-6/2019
Egyéb
NKFIH-K-124719
Egyéb
NKFIH-K-132870
Egyéb
TKP2020-IKA-04
Egyéb
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DOI
Intézményi repozitóriumban (DEA) tárolt változat
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